fix lint

Author: mondaychen

packages/react-devtools-shared/src/devtools/views/Components/Tree.js

@@ -562,7 +562,10 @@ function InnerElementType({children, style, ...rest}) {
   // a temporary workaround for https://github.com/facebook/react/issues/24626
   // removing `pointerEvents` to ensure this is always clickable
   // TODO: find a better way to fix this (maybe on react-window side)
-  const {pointerEvents, ...cleanStyle} = style;
+  const cleanStyle = {...style};
+  if (cleanStyle.pointerEvents != null) {
+    delete cleanStyle.pointerEvents;
+  }
 
   // This style override enables the background color to fill the full visible width,
   // when combined with the CSS tweaks in Element.